A new study suggests that female mosquitoes can transmit Zika virus into eggs laid, and to the descendants afterwards, which means that efforts to kill senior mosquitoes may be useless, according to what the researchers.
The researchers wanted in the field of medicine at the University of Texas at Galveston, Texas, to make sure that female mosquitoes infect the eggs, the same way you do if you were infected with yellow fever.
The researchers injected into the lab mosquitoes infected with Zika. During the week - and after feeding mosquitoes - some mosquito eggs laid. The researchers created the atmosphere to incubate eggs and to protect it emerged larvae.
Tests on mosquitoes and showed that one out of 290 infected with Zika.
Said Robert Tisch, co-author of the study "low percentage may seem, but if you take into account the number of mosquito-type carrier of the virus Zika in cities in the tropics, the ratio is high enough to allow the virus to continue, even after the top kill infected mosquitoes."
He said Tisch, in a study published in the American Journal of Tropical Medicine and Hygiene, "mosquito spray affects Kabarha, but does not usually kill their young, or incomplete ones, eggs and larvae."
This may help "vertical transmission" of the virus from female mosquitoes to their eggs in the survival of the virus, even in bad conditions, such as the dry season in the tropics.
The next step, which researchers must take is to determine whether such transmission of the virus occurs in nature, in the same way that happened in the lab.
The World Health Organization has announced Zika international health emergency because it may lead to defects in newborns, in the formation of the brain and the bones of the head, known by its small head.
And transmits Zika virus mainly by a mosquito known as the "Aedes aegypti", and can also be transferred by sexual contact.
Advises pregnant mothers health authorities and their families not to travel to a number of countries report more than 40 countries, mostly in the Caribbean and Latin America, where activates the Zika virus now.
The Florida revealed 43 cases of transmission of the virus Zika locally in parts of Miami, and Palm Beach County.
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